332531613 has 12 divisors (see below), whose sum is σ = 482112540. Its totient is φ = 220862016.

The previous prime is 332531609. The next prime is 332531621. The reversal of 332531613 is 316135233.

It is a happy number.

332531613 is a `hidden beast` number, since 332 + 5 + 316 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 43599609 + 288932004 = 6603^2 + 16998^2 .

It is not a de Polignac number, because 332531613 - 2² = 332531609 is a prime.

It is a super-2 number, since 2×332531613² = 221154547288763538, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (332531623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 66256 + ... + 71097.

It is an arithmetic number, because the mean of its divisors is an integer number (40176045).

Almost surely, 2^332531613 is an apocalyptic number.

It is an amenable number.

332531613 is a deficient number, since it is larger than the sum of its proper divisors (149580927).

332531613 is a wasteful number, since it uses less digits than its factorization.

332531613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137628 (or 137625 counting only the distinct ones).

The product of its digits is 4860, while the sum is 27.

The square root of 332531613 is about 18235.4493500983. The cubic root of 332531613 is about 692.8049462604.

Adding to 332531613 its reverse (316135233), we get a palindrome (648666846).

The spelling of 332531613 in words is "three hundred thirty-two million, five hundred thirty-one thousand, six hundred thirteen".